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KR910013083A - Magnetic recording medium - Google Patents

Magnetic recording medium Download PDF

Info

Publication number
KR910013083A
KR910013083A KR1019900020333A KR900020333A KR910013083A KR 910013083 A KR910013083 A KR 910013083A KR 1019900020333 A KR1019900020333 A KR 1019900020333A KR 900020333 A KR900020333 A KR 900020333A KR 910013083 A KR910013083 A KR 910013083A
Authority
KR
South Korea
Prior art keywords
recording medium
magnetic recording
crosslinking agent
group
equilibrium
Prior art date
Application number
KR1019900020333A
Other languages
Korean (ko)
Other versions
KR100191441B1 (en
Inventor
에이타로오 나까무라
가쯔야 나까무라
Original Assignee
다키자와 쯔요시
니혼제온 가부시기가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 다키자와 쯔요시, 니혼제온 가부시기가이샤 filed Critical 다키자와 쯔요시
Publication of KR910013083A publication Critical patent/KR910013083A/en
Application granted granted Critical
Publication of KR100191441B1 publication Critical patent/KR100191441B1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • G11B5/7021—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate
    • G11B5/7022—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing a polyurethane or a polyisocyanate containing mixtures of polyurethanes or polyisocyanates with other polymers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/712—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the surface treatment or coating of magnetic particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31935—Ester, halide or nitrile of addition polymer

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

내용 없음.No content.

Description

자기기록매체Magnetic recording medium

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (1)

35㎡/g 이상의 비표면적을 가지고, 평형농도 0.6g/100㎖의 메틸에틸케톤 용액중에서 미리스틴산의 평형 흡착량이 0.5㎎/㎡ 이하의 자성분말과 SO3M, SO4M, PO4M2,N-R1R2R3X-(M은 수소, 암모늄, 내지는 알칼리 금속을 나타내고, R1, R2, R3은 각각 알킬기를, 또 X는 음이온을 나타낸다)중에서 선택된 적어도 1종의 친수성기와 수산기, 티올기, 아미노기, 에폭시기에서 선택된 적어도 1종의 반응성기를 가지는 결합제를 포함한 자성층을, 폴리이소시아네이트, 폴리아민 및 폴리티올에서 선택된 적어도 1종의 가교제에 의하여 가교하여 이루어지는 것을 특징으로 하는 자기기록 매체.Magnetic powder and SO with an equilibrium adsorption amount of myristic acid of 0.5 mg / m 2 or less in a methyl ethyl ketone solution having a specific surface area of 35 m 2 / g or more and an equilibrium concentration of 0.6 g / 100 ml3M, SO4M, PO4M2,N-ROneR2R3X-(M represents hydrogen, ammonium, or an alkali metal, and ROne, R2, R3Are each an alkyl group, and X represents an anion). And a crosslinking agent selected from the group consisting of at least one crosslinking agent. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900020333A 1989-12-11 1990-12-11 Magnetic recording medium KR100191441B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1-320891 1989-12-11
JP1320891A JP2806578B2 (en) 1989-12-11 1989-12-11 Magnetic recording media

Publications (2)

Publication Number Publication Date
KR910013083A true KR910013083A (en) 1991-08-08
KR100191441B1 KR100191441B1 (en) 1999-06-15

Family

ID=18126419

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900020333A KR100191441B1 (en) 1989-12-11 1990-12-11 Magnetic recording medium

Country Status (3)

Country Link
US (1) US5422193A (en)
JP (1) JP2806578B2 (en)
KR (1) KR100191441B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL127579A (en) * 1996-06-19 2009-07-20 Nevamar Co Llc Method of making resin encapsulated particles and the particles thus obtained
US6294242B1 (en) 1998-05-15 2001-09-25 Toda Kogyo Corporation Magnetic recording medium
KR19990088309A (en) * 1998-05-15 1999-12-27 토다 고교 가부시끼가이샤 Magnetic recording medium
JP4557102B2 (en) * 1999-11-15 2010-10-06 戸田工業株式会社 Acicular magnetic particle powder for magnetic recording medium and magnetic recording medium using the acicular magnetic particle powder
JP4020764B2 (en) * 2001-12-21 2007-12-12 Ｊｆｅミネラル株式会社 Super fine metal slurry with excellent dispersibility
ITFI20060006A1 (en) * 2006-01-04 2007-07-05 Colorobbia Italiana Spa FUNCTIONALIZED NANOPARTICLES, THEIR PRODUCTION AND USE
CN102394802B (en) * 2006-11-03 2015-06-17 索尤若驱动有限及两合公司 Method and device for bus arbitration, converter and manufacturing installation

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595423A (en) * 1982-07-01 1984-01-12 Sony Corp Magnetic recording medium
JPS595424A (en) * 1982-07-01 1984-01-12 Sony Corp Magnetic recording medium
JPS5979433A (en) * 1982-10-27 1984-05-08 Kao Corp Magnetic recording medium
JPS59180830A (en) * 1983-03-31 1984-10-15 Kao Corp Magnetic recording medium
JPS6070518A (en) * 1983-09-28 1985-04-22 Toshiba Corp Magnetic recording medium
JPS60235814A (en) * 1984-05-08 1985-11-22 Nippon Zeon Co Ltd Resin for magnetic paint
JPS60238306A (en) * 1984-05-11 1985-11-27 Nippon Zeon Co Ltd Resin for magnetic paint
JPS60238371A (en) * 1984-05-11 1985-11-27 Nippon Zeon Co Ltd Resin for magnetic coating compound
JPS60238309A (en) * 1984-05-11 1985-11-27 Nippon Zeon Co Ltd Resin for magnetic paint
JPS61133012A (en) * 1984-11-30 1986-06-20 Hitachi Maxell Ltd Magnetic recording medium
JPH0785305B2 (en) * 1986-08-05 1995-09-13 富士写真フイルム株式会社 Magnetic recording medium
JPS63121117A (en) * 1986-11-10 1988-05-25 Nippon Zeon Co Ltd Magnetic recording medium
JPH0687296B2 (en) * 1987-04-24 1994-11-02 富士写真フイルム株式会社 Magnetic recording medium
JPS6439624A (en) * 1987-08-06 1989-02-09 Nisshin Kagaku Kogyo Kk Binder resin for magnetic recording medium
JPH01269228A (en) * 1988-04-20 1989-10-26 Fuji Photo Film Co Ltd Production of magnetic recording medium

Also Published As

Publication number Publication date
JP2806578B2 (en) 1998-09-30
JPH03183013A (en) 1991-08-09
KR100191441B1 (en) 1999-06-15
US5422193A (en) 1995-06-06

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Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19901211

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Patent event code: PA02012R01D

Patent event date: 19951123

Comment text: Request for Examination of Application

Patent event code: PA02011R01I

Patent event date: 19901211

Comment text: Patent Application

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19981116

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 19990125

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 19990126

End annual number: 3

Start annual number: 1

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Termination date: 20021011